CN219161878U - Multi-specification hot-rolled H-shaped steel r fillet bending 90-degree detection device - Google Patents
Multi-specification hot-rolled H-shaped steel r fillet bending 90-degree detection device Download PDFInfo
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- CN219161878U CN219161878U CN202222632980.XU CN202222632980U CN219161878U CN 219161878 U CN219161878 U CN 219161878U CN 202222632980 U CN202222632980 U CN 202222632980U CN 219161878 U CN219161878 U CN 219161878U
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Abstract
The utility model discloses a multi-specification hot-rolled H-shaped steel r fillet bending 90-degree detection device, which belongs to the technical field of hot-rolled H-shaped steel testing, and comprises a tester frame, a groove-shaped base and a bending, flattening and propping mechanism, wherein the groove-shaped base comprises a fixed base and a movable base, and the movable base is arranged on one side of the fixed base through a base adjusting mechanism and adjusts the horizontal position of the movable base relative to the fixed base; the upper surfaces of the fixed base and the movable base are respectively provided with a strip-shaped groove. According to the utility model, the distance between the movable base and the fixed base is adjusted according to the specification of the hot-rolled H-shaped steel, so that the distance between two strip grooves is equal to the distance between two flanges of the hot-rolled H-shaped steel, the hot-rolled H-shaped steel is placed in the strip grooves on the groove base, and the flange on the fixed base in the hot-rolled H-shaped steel is bent and flattened to 90 degrees from the r fillet to the outside by utilizing the action of a bending flat-top propping mechanism, so that the purpose of the r fillet bending test is achieved.
Description
Technical Field
The utility model relates to the technical field of hot-rolled H-shaped steel testing, in particular to a multi-specification hot-rolled H-shaped steel r fillet bending 90-degree detection device.
Background
The modern building industry develops towards the construction of environment-friendly, low-carbon and service-safe high-performance steel structures, and the hot-rolled H-shaped steel belongs to high-efficiency and energy-saving building steel, and has huge development space. The hot-rolled H-shaped steel is generally used for important applications such as large bridges, high-rise buildings and the like with large bearing capacity and good section stability, has good bending resistance, torsion resistance and compression resistance on the safety service reliability of the hot-rolled H-shaped steel, and places higher requirements on the toughness and the ductility of the hot-rolled H-shaped steel.
In the prior art, impact toughness and cold bending process performance of hot rolled H-shaped steel are detected by an impact power test and a 180-degree bending test, the impact power test and the 180-degree bending test need to longitudinally sample along the rolling direction on a flange of the hot rolled H-shaped steel, and then after the hot rolled H-shaped steel is manufactured into an exquisite sample needed by the test on a sample making machine, the test is respectively carried out on an impact power tester and a hydraulic bending tester, and the defects are that: (1) The time consuming is long, the work of the detection personnel is complicated, and the test cost is high; (2) The detection is not carried out on the r fillet position with concentrated stress of the hot-rolled H-shaped steel product, wherein the r fillet is the junction of the flange and the web of the hot-rolled H-shaped steel, and the safety service performance of the steel member manufactured by the whole hot-rolled H-shaped steel is affected by internal defects such as concentrated stress of steel inclusions and sharp crack tips.
Disclosure of Invention
In order to solve the problem that in the prior art, the r fillet position with concentrated stress of a hot rolled H-shaped steel product is not detected, so that the evaluation of the safety service performance of a steel member manufactured by the hot rolled H-shaped steel is incomplete, the utility model provides a multi-specification hot rolled H-shaped steel r fillet bending 90-degree detection device, which comprises a tester frame, a groove-shaped base and a bending flattening propping mechanism, wherein the groove-shaped base is fixedly arranged at the bottom position in the tester frame, the bending flattening propping mechanism is fixedly arranged at the position above the groove-shaped base in the tester frame, the groove-shaped base comprises a fixed base and a movable base, and the movable base is arranged at one side of the fixed base through a base adjusting mechanism and adjusts the horizontal position of the movable base relative to the fixed base; the fixed base and the movable base are arranged on the same plane, the upper surfaces of the fixed base and the movable base are respectively provided with a strip-shaped groove, the strip-shaped grooves on the upper surfaces of the fixed base and the movable base are parallel to each other, and the adjusting direction of the base adjusting mechanism is perpendicular to the length direction of the strip-shaped grooves.
Here, according to the distance of hot rolling H shaped steel specification adjustment movable base for unable adjustment base, make the distance between two bar grooves equal with the distance between two flanges of hot rolling H shaped steel, place hot rolling H shaped steel in the bar inslot on the groove type base again, utilize the flat top of bending to support the effect of mechanism to the flange that lies in unable adjustment base in the hot rolling H shaped steel, make the flange bend to flatten to 90 of bending outward from r fillet department, reach r fillet bending test's purpose.
Preferably, the base adjusting mechanism comprises a horizontal adjusting rod and an adjusting hand wheel, a first adjusting hole is formed in one side, close to the movable base, of the fixed base, and a second adjusting hole penetrating through two opposite sides of the movable base is formed in the position, corresponding to the first adjusting hole, of the movable base; the horizontal adjusting rod passes through the second adjusting hole, one end of the horizontal adjusting rod is installed in the first adjusting hole, and the other end of the horizontal adjusting rod is installed with the adjusting hand wheel.
Preferably, an adjusting seat body is fixedly arranged on one side, close to the movable base, of the horizontal adjusting rod.
Preferably, an external thread is formed on the outer circumferential surface of the horizontal adjusting rod near the fixing base, and an internal thread matched with the external thread is formed on the inner wall of the first adjusting hole.
Preferably, the base adjusting mechanism further comprises a positioning moving rod, a first positioning hole is formed in one side, close to the movable base, of the fixed base, a second positioning hole penetrating through two opposite sides of the movable base is formed in a position, corresponding to the first positioning hole, of the movable base, the positioning moving rod penetrates through the second positioning hole, and one end of the positioning moving rod is installed in the first positioning hole; the straight line of the positioning moving rod is parallel to the straight line of the horizontal adjusting rod.
Preferably, the widths of the two strip grooves on the fixed base and the movable base are equal to the thickness of the flange of the hot-rolled H-shaped steel, and the depths of the two strip grooves are greater than or equal to the distance from the end of the flange on the hot-rolled H-shaped steel to the plane where the web is located on the side close to the end of the flange.
Preferably, the bending and flattening propping mechanism comprises a bending propping mechanism and a flattening propping mechanism, the bending propping mechanism comprises a bending hydraulic cylinder, a hydraulic cylinder seat and a bending propping plate, the hydraulic cylinder seat is fixedly installed on one side of the tester frame away from the fixed base, the bending hydraulic cylinder is connected to the hydraulic cylinder seat through a hydraulic cylinder rotating shaft and can rotate along the axial direction of the hydraulic cylinder rotating shaft, and the bending propping plate is fixedly installed on the movable end of the bending hydraulic cylinder.
Preferably, the expansion and contraction direction of the movable end of the bending hydraulic cylinder is perpendicular to the length direction of the strip-shaped groove, and the axial direction of the rotating shaft of the hydraulic cylinder is the same as the length direction of the strip-shaped groove;
when the hot-rolled H-shaped steel is placed in the strip-shaped groove of the groove-shaped base, the height of the hydraulic cylinder rotating shaft is higher than the top height of the hot-rolled H-shaped steel flange.
Preferably, when the bending top-resisting plate is propped against the flange of the hot rolled H-shaped steel positioned on the fixed base, an included angle between the expansion and contraction direction of the movable end of the bending hydraulic cylinder and the horizontal plane is 30-60 degrees.
Preferably, the pressing and propping mechanism comprises a pressing hydraulic cylinder and a pressing and propping plate, wherein the pressing hydraulic cylinder is fixedly arranged at the top of the tester frame, the pressing and propping plate is fixedly arranged at the movable end of the pressing hydraulic cylinder, and the stretching direction of the movable end of the pressing hydraulic cylinder is vertically arranged.
Preferably, the bending propping mechanism is positioned at one side of one strip-shaped groove far away from the other strip-shaped groove, and is fixedly arranged at one side of the tester frame; the flattening propping mechanism is arranged at a position above the strip-shaped groove far away from the bending propping mechanism and is biased to a position far away from one side of the bending propping mechanism.
Preferably, the horizontal distance between the lower end part of the flattening propping mechanism and the strip-shaped groove is smaller than half of the length of the flange of the hot-rolled H-shaped steel.
During an actual bending test, the bending propping mechanism can be driven to prop against the inner side of the hot-rolled H-shaped steel flange, so that the hot-rolled H-shaped steel flange is outwards bent to be about 45 degrees, then the bending propping mechanism is retracted, and the pressing propping mechanism is driven to continuously prop against the inner side of the hot-rolled H-shaped steel flange downwards until the hot-rolled H-shaped steel flange is bent to be 90 degrees, namely in a flattening state. After the hot rolled H-shaped steel r fillet is bent by 90 degrees, no visible crack is generated, and the 90-degree bending test of the hot rolled H-shaped steel r fillet in the batch (heat) can be judged to be qualified.
The beneficial effects are that:
the technical scheme of the utility model has the following beneficial effects:
(1) According to the specification of the hot-rolled H-shaped steel, the distance between the movable base and the fixed base is adjusted, so that the distance between the two strip grooves is equal to the distance between the two flanges of the hot-rolled H-shaped steel, the hot-rolled H-shaped steel is placed in the strip grooves on the groove type base, and the flange on the fixed base in the hot-rolled H-shaped steel is bent and flattened to be bent by 90 degrees from the r fillet to the outside by utilizing the action of a bending flat-top propping mechanism, so that the purpose of the r fillet bending test is achieved.
(2) The r fillet 90-degree bending detection is added in the detection of the hot rolled H-shaped steel for the first time, so that the safety guarantee of the safe service of the detected steel products is verified, and meanwhile, the standard and the detection standard of the hot rolled H-shaped steel products at home and abroad are supplemented; the result of the detection method is also used as the cleanliness evaluation basis for producing qualified intermediate product billets in intermediate production procedures (steelmaking smelting, refining and continuous casting).
(3) The test method for 90-degree bending of the r fillet of the hot-rolled H-shaped steel is simple and easy to use, and the safety performance of the hot-rolled H-shaped steel of a service steel structure can be simulated at different environmental temperatures, so that the hidden defect of the weak link at the r fillet where the stress of the hot-rolled H-shaped steel is most concentrated is detected, and meanwhile, the labor and material cost is saved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a preferred hot-pressed H-section steel structure of the present utility model;
FIG. 2 is a graph showing the condition of r fillet cracking in the bent state of a hot-pressed H-section steel according to the present utility model;
FIG. 3 is a schematic diagram of a front view of a preferred 90 degree bend detection device according to the present utility model;
FIG. 4 is a schematic diagram of a front view of a preferred trough-type base of the present utility model;
FIG. 5 is a schematic side view of a preferred 90 degree bend detection device of the present utility model;
FIG. 6 is a schematic diagram showing a front view of a 90 degree bend detection device according to the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
As shown in fig. 1 to 6, the multi-specification hot rolled H-section steel r fillet bending 90 ° detection device comprises a tester frame 1, a groove-shaped base 2 and a bending flattening propping mechanism, wherein the groove-shaped base 2 is fixedly arranged at the bottom position in the tester frame 1, the bending flattening propping mechanism is fixedly arranged at the position above the groove-shaped base 2 in the tester frame 1, the groove-shaped base 2 comprises a fixed base 21 and a movable base 22, and the movable base 22 is arranged at one side of the fixed base 21 through a base adjusting mechanism 23 and adjusts the horizontal position of the movable base 22 relative to the fixed base 21; the upper surfaces of the fixed base 21 and the movable base 22 are positioned on the same plane, the upper surfaces of the fixed base 21 and the movable base 22 are respectively provided with a strip-shaped groove 24, the strip-shaped grooves positioned on the upper surfaces of the fixed base 21 and the movable base 22 are mutually parallel, and the adjusting direction of the base adjusting mechanism 23 is vertical to the length direction of the strip-shaped grooves 24.
Here, the distance between the movable base and the fixed base is adjusted according to the specification of the hot-rolled H-shaped steel 100, so that the distance between the two strip grooves 24 is equal to the distance between the two flanges 101 of the hot-rolled H-shaped steel 100, the hot-rolled H-shaped steel 100 is placed in the strip grooves 24 on the groove-shaped base, and the flange on the fixed base in the hot-rolled H-shaped steel is bent and flattened to 90 degrees from the r-fillet to the outside by applying force to the flange by using a bending flat-top supporting mechanism, so that the purpose of the r-fillet bending test is achieved.
The base adjusting mechanism 23 comprises a horizontal adjusting rod 231 and an adjusting hand wheel 232, a first adjusting hole 211 is formed on one side of the fixed base 21, which is close to the movable base 22, and a second adjusting hole 221 penetrating through two opposite sides of the movable base 22 is formed on the movable base 22 at a position corresponding to the first adjusting hole 211; the horizontal adjusting rod 231 passes through the second adjusting hole 221, one end of the horizontal adjusting rod is installed in the first adjusting hole 211, and the other end of the horizontal adjusting rod is installed with the adjusting hand wheel 232.
An adjusting seat 233 is fixedly arranged on one side of the horizontal adjusting rod 231, which is close to the movable seat 22.
An external thread is formed on an outer circumferential surface of the horizontal adjusting lever 231 near the fixing base, and an internal thread matched with the external thread is formed on an inner wall of the first adjusting hole 211.
The base adjusting mechanism 23 further includes a positioning moving rod 234, a first positioning hole 212 is formed on the fixed base 21 near the movable base 22, a second positioning hole 222 penetrating through two opposite sides of the movable base 22 is formed on the movable base 22 at a position corresponding to the first positioning hole 212, and the positioning moving rod 234 penetrates through the second positioning hole 222, and one end of the positioning moving rod is installed in the first positioning hole 212; the line of the positioning moving rod 234 is parallel to the line of the horizontal adjusting rod 231.
The width of the two strip grooves 24 on the fixed base 21 and the movable base 22 is equal to the thickness of the flange 101 of the hot-rolled H-shaped steel 100, and the depth of the two strip grooves 24 is greater than or equal to the distance from the end of the flange 101 to the plane where the web 102 is near the end of the flange 101 on the hot-rolled H-shaped steel 100.
The bending and flattening supporting mechanism comprises a bending supporting mechanism 3 and a flattening supporting mechanism 4, the bending supporting mechanism 3 comprises a bending hydraulic cylinder 31, a hydraulic cylinder seat 32 and a bending supporting plate 33, the hydraulic cylinder seat 32 is fixedly arranged on one side of the tester frame 1, which is far away from the fixed base 21, a mounting cross beam 35 can be arranged on the side surface of the tester frame 1, and the hydraulic cylinder seat 32 is arranged on the mounting cross beam 35; the bending hydraulic cylinder 31 is connected to the hydraulic cylinder seat 32 through a hydraulic cylinder rotating shaft 34 in a shaft way and can rotate along the axial direction of the hydraulic cylinder rotating shaft 34, and the bending top resisting plate 33 is fixedly installed on the movable end of the bending hydraulic cylinder 31.
The expansion and contraction direction of the movable end of the bending hydraulic cylinder 31 is perpendicular to the length direction of the strip-shaped groove 24, and the axial direction of the hydraulic cylinder rotating shaft 34 is the same as the length direction of the strip-shaped groove 24;
when the hot-rolled H-shaped steel is placed in the strip-shaped groove of the groove-shaped base, the height of the hydraulic cylinder rotating shaft is higher than the top height of the hot-rolled H-shaped steel flange.
When the bending top-resisting plate 33 is propped against the flange 101 of the hot-rolled H-shaped steel 100 positioned on one side of the fixed base 21, the included angle between the expansion direction of the movable end of the bending hydraulic cylinder 31 and the horizontal plane is 30-60 degrees.
The flattening top propping mechanism 4 comprises a flattening hydraulic cylinder 41 and a flattening top propping plate 42, wherein the flattening hydraulic cylinder 41 is fixedly arranged at the top of the tester frame 1, the flattening top propping plate 42 is fixedly arranged at the movable end of the flattening hydraulic cylinder 41, and the stretching direction of the movable end of the flattening hydraulic cylinder 41 is vertically arranged.
The bending propping mechanism 4 is positioned at one side of one strip-shaped groove 24 far away from the other strip-shaped groove 24 and is fixedly arranged at one side of the tester frame 1; the flattening propping mechanism 4 is arranged at a position which is far away from the bending propping mechanism 3 and is biased to one side of the bending propping mechanism 3 above the strip-shaped groove 24 far away from the bending propping mechanism 3.
The horizontal distance between the lower end of the pressing top abutting mechanism 4 and the strip groove 24 is smaller than half of the length of the flange 101 of the hot rolled H-shaped steel 100.
During an actual bending test, the bending propping mechanism can be driven to prop against the inner side of the hot-rolled H-shaped steel flange, so that the hot-rolled H-shaped steel flange is outwards bent to be about 45 degrees, then the bending propping mechanism is retracted, and the pressing propping mechanism is driven to continuously prop against the inner side of the hot-rolled H-shaped steel flange downwards to be bent for 90 degrees, namely, in a flattening state; after the hot rolled H-shaped steel r fillet is bent by 90 degrees, no visible crack is generated, and the 90-degree bending test of the hot rolled H-shaped steel r fillet in the batch (heat) can be judged to be qualified.
In order to enable the bending and flattening of the entire flange 101, the lengths of the bending top abutment plate 33 and the flattening top abutment plate 42 are preferably greater than or equal to the length of the flange 101 along the length of the hot rolled H-section, although they may be slightly less than the length of the flange 101 along the length of the hot rolled H-section, but not much less.
Furthermore, in order to achieve flattening of the flange 101, the distance of the strip 24 from the two inner walls of the tester frame 1 is greater than the distance of the bent section of the flange 101, where it is preferred that the distance of the strip 24 from the two inner walls of the tester frame 1 is greater than half the total length of the flange 101.
As a preferred embodiment, the bending propping mechanism 3 and the pressing propping mechanism 4 can also adopt the same driving mechanism, and the purpose of bending and flattening is achieved by driving the propping plate propping against the flange of the hot-rolled H-shaped steel to move along a curve track and continuously applying thrust and pressure to the side surface of the flange, so that the flange is bent for 90 degrees from a vertical state to a horizontal state.
As a preferred embodiment, the flanges on two sides of the hot rolled H-section steel can be simultaneously subjected to a bending 90 ° test, specifically, as shown in fig. 6, the bending propping mechanism 3 includes a bending hydraulic cylinder 31 and a bending propping plate 33, wherein the bending hydraulic cylinder 31 is installed at a position right above the web of the hot rolled H-section steel, the movable end of the bending hydraulic cylinder 31 stretches vertically downwards, the two bending propping plates 33 are respectively connected with the movable end of the bending hydraulic cylinder 31 through propping rods 36 by a shaft, when the flanges are bent, the two bending propping plates 33 prop against the inner positions of the two flanges of the hot rolled H-section steel, and the bending hydraulic cylinder 31 moves downwards to enable the bending propping plate 33 to bend outwards by a certain angle.
Here, the bending hydraulic cylinder 31 is installed at the middle position of the top of the tester frame 1, two flattening propping mechanisms 4 are respectively installed at two sides of the bending hydraulic cylinder 31 at the top of the tester frame 1, when the flange is bent outwards, the bending hydraulic cylinder 31 can selectively bend 45 degrees, the bending hydraulic cylinder 31 moves upwards to retract, and the two flattening propping mechanisms 4 flatten the flange bent at two sides downwards to bend 90 degrees. The horizontal positions of the bending hydraulic cylinder 31 and the two flattening propping mechanisms 4 at the top of the tester frame 1 are adjustable, namely, the distance between the movable base and the fixed base is adjusted according to the specification of the hot rolled H-shaped steel 100, so that the distance between the two strip grooves 24 is equal to the distance between the two flanges 101 of the hot rolled H-shaped steel 100, the hot rolled H-shaped steel 100 is placed in the strip grooves 24 on the groove-shaped base, the horizontal position of the bending hydraulic cylinder 31 is adjusted to be positioned right in the middle of the two flanges 101 of the hot rolled H-shaped steel 100, and the bending flat propping mechanisms are utilized to exert force on the two flanges in the hot rolled H-shaped steel, so that the flanges are bent and flattened to bend 90 degrees outwards from r-fillet positions, thereby achieving the purpose of r-fillet bending test.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The multi-specification hot-rolled H-shaped steel r fillet bending 90-degree detection device is characterized by comprising a tester frame, a groove-shaped base and a bending flattening propping mechanism, wherein the groove-shaped base is fixedly arranged at the bottom position in the tester frame, the bending flattening propping mechanism is fixedly arranged at the position above the groove-shaped base in the tester frame, the groove-shaped base comprises a fixed base and a movable base, and the movable base is arranged at one side of the fixed base through a base adjusting mechanism and adjusts the horizontal position of the movable base relative to the fixed base; the fixed base and the movable base are arranged on the same plane, the upper surfaces of the fixed base and the movable base are respectively provided with a strip-shaped groove, the strip-shaped grooves on the upper surfaces of the fixed base and the movable base are parallel to each other, and the adjusting direction of the base adjusting mechanism is perpendicular to the length direction of the strip-shaped grooves.
2. The multi-specification hot-rolled H-shaped steel r fillet bending 90-degree detection device according to claim 1, wherein the base adjusting mechanism comprises a horizontal adjusting rod and an adjusting hand wheel, a first adjusting hole is formed on one side, close to the movable base, of the fixed base, and a second adjusting hole penetrating through two opposite sides of the movable base is formed on the movable base at a position corresponding to the first adjusting hole; the horizontal adjusting rod passes through the second adjusting hole, one end of the horizontal adjusting rod is installed in the first adjusting hole, and the other end of the horizontal adjusting rod is installed with the adjusting hand wheel.
3. The multi-specification hot-rolled H-shaped steel r fillet bending 90-degree detection device according to claim 2, wherein an adjusting seat body is fixedly arranged on one side of the horizontal adjusting rod, which is close to the movable base.
4. The device for detecting r-fillet bending of multi-specification hot-rolled H-shaped steel by 90 degrees according to claim 2, wherein an external thread is formed on the outer circumferential surface of the horizontal adjusting rod near the fixing base, and an internal thread matched with the external thread is formed on the inner wall of the first adjusting hole.
5. The multi-specification hot-rolled H-shaped steel r fillet bending 90-degree detection device according to claim 2, wherein the base adjusting mechanism further comprises a positioning moving rod, a first positioning hole is formed in one side, close to the movable base, of the fixed base, a second positioning hole penetrating through two opposite sides of the movable base is formed in the position, corresponding to the first positioning hole, of the movable base, the positioning moving rod penetrates through the second positioning hole, and one end of the positioning moving rod is installed in the first positioning hole; the straight line of the positioning moving rod is parallel to the straight line of the horizontal adjusting rod.
6. The multi-specification hot-rolled H-section steel r fillet bending 90-degree detection device according to claim 1, wherein the widths of two strip-shaped grooves on the fixed base and the movable base are equal to the thickness of a flange of the hot-rolled H-section steel, and the depths of the two strip-shaped grooves are greater than or equal to the distance from the end of the flange of the hot-rolled H-section steel to a plane where a web is located on one side close to the end of the flange.
7. The multi-specification hot-rolled H-shaped steel r fillet bending 90-degree detection device according to claim 1, wherein the bending flattening propping mechanism comprises a bending propping mechanism and a flattening propping mechanism, the bending propping mechanism comprises a bending hydraulic cylinder, a hydraulic cylinder seat and a bending propping plate, the hydraulic cylinder seat is fixedly installed on one side of the tester frame far away from the fixed base, the bending hydraulic cylinder is connected to the hydraulic cylinder seat through a hydraulic cylinder rotating shaft and can rotate along the axis direction of the hydraulic cylinder rotating shaft, and the bending propping plate is fixedly installed on the movable end of the bending hydraulic cylinder.
8. The multi-specification hot-rolled H-shaped steel r fillet bending 90-degree detection device according to claim 7, wherein the expansion and contraction direction of the movable end of the bending hydraulic cylinder is perpendicular to the length direction of the strip-shaped groove, and the axis direction of the rotating shaft of the hydraulic cylinder is the same as the length direction of the strip-shaped groove;
when the hot-rolled H-shaped steel is placed in the strip-shaped groove of the groove-shaped base, the height of the hydraulic cylinder rotating shaft is higher than the top height of the hot-rolled H-shaped steel flange.
9. The multi-specification hot-rolled H-section steel r fillet bending 90-degree detection device according to claim 8, wherein when the bending top-resisting plate is propped against the hot-rolled H-section steel flange positioned on the fixed base, an included angle between the expansion and contraction direction of the movable end of the bending hydraulic cylinder and a horizontal plane is 30-60 degrees.
10. The device for detecting the r-fillet bending of the hot rolled H-shaped steel according to claim 7, wherein the flattening propping mechanism comprises a flattening hydraulic cylinder and a flattening propping plate, the flattening hydraulic cylinder is fixedly arranged at the top of the tester frame, the flattening propping plate is fixedly arranged at the movable end of the flattening hydraulic cylinder, and the telescopic direction of the movable end of the flattening hydraulic cylinder is vertically arranged.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222632980.XU CN219161878U (en) | 2022-10-08 | 2022-10-08 | Multi-specification hot-rolled H-shaped steel r fillet bending 90-degree detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222632980.XU CN219161878U (en) | 2022-10-08 | 2022-10-08 | Multi-specification hot-rolled H-shaped steel r fillet bending 90-degree detection device |
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| CN219161878U true CN219161878U (en) | 2023-06-09 |
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| CN202222632980.XU Active CN219161878U (en) | 2022-10-08 | 2022-10-08 | Multi-specification hot-rolled H-shaped steel r fillet bending 90-degree detection device |
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| CN (1) | CN219161878U (en) |
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